package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品管理")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品和口味
     * @param dishDTO
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result<String> save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品");
        dishService.saveWithFlavor(dishDTO);

        // 删除指定key的缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success("新增成功");
    }

    /**
     *  菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询");
        return Result.success(dishService.pageQuery(dishPageQueryDTO));
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result<String> delete(@RequestParam List<Long> ids) {
        log.info("批量删除菜品");
        dishService.deleteBatch(ids);

        // 将所有的菜品缓存数据清理掉，所有dish_开头的key
        cleanCache("dish_*");

        return Result.success("删除成功");
    }

    /**
     * 根据id查询菜品和对应的口味数据
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品和对应的口味数据")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品和对应的口味数据");
        return Result.success(dishService.getByIdWithFlavor(id));
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result<String> update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品");
        dishService.updateDishWithFlavor(dishDTO);

        // 将所有的菜品缓存数据清理掉，所有dish_开头的key
        cleanCache("dish_*");

        return Result.success("修改成功");
    }

    /**
     * 修改菜品状态
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("修改菜品状态")
    public Result<String> startOrStop(@PathVariable Integer status, Long id) {
        log.info("修改菜品状态");
        dishService.startOrStop(status, id);

        // 将所有的菜品缓存数据清理掉，所有dish_开头的key
        cleanCache("dish_*");

        return Result.success("修改成功");
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        log.info("根据分类id查询菜品：{}",categoryId);
        List<Dish> dishVOList = dishService.getById(categoryId);
        return Result.success(dishVOList);
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
